Pith Number

pith:BARCDLSY

pith:2004:BARCDLSYG6NG6IQWMR232UDVOQ

not attested not anchored not stored refs pending

ISO Observations of the 53W002 Group at 6.7 microns: In Search of the Oldest Stellar Populations at z=2.4

I. Waddington, J. S. Dunlop, M. Holmes, P. P. van der Werf, R. A. Windorst, S. A. Eales, W. C. Keel, W. Wu

arxiv:astro-ph/0406438 v1 · 2004-06-19 · astro-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BARCDLSYG6NG6IQWMR232UDVOQ}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-04T16:44:02.944855Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

082221ae58379a6f22166475bd50757419ed6623115cf1bbda0dd0d07e3451a5

Aliases

arxiv: astro-ph/0406438 · arxiv_version: astro-ph/0406438v1 · doi: 10.48550/arxiv.astro-ph/0406438 · pith_short_12: BARCDLSYG6NG · pith_short_16: BARCDLSYG6NG6IQW · pith_short_8: BARCDLSY

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/BARCDLSYG6NG6IQWMR232UDVOQ \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 082221ae58379a6f22166475bd50757419ed6623115cf1bbda0dd0d07e3451a5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "afdfc450b4bde8733cc8d0aa58f5c5ff72d3967c8c391cf0dbd816e633a87b3b",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-06-19T19:35:43Z",
    "title_canon_sha256": "873a73c1c9a816c78c03b7e52555e5020c00ee73d3b799b6cd62a3fd99864edf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0406438",
    "kind": "arxiv",
    "version": 1
  }
}